ERIC MJOBERG, ISOPTERA. 



53 



22. Eutermes yarrabaheusis n. sp. 



Soldier (Text Fig. 25). Head viewed from above more 

 narrow, and much more rounded at the hind margin, than in 

 E. kimberleyensis Mjöb., sharply tapering to the base of the 

 snout, which is slightly broader and stouter, colour of head 

 very similar, antennse 14-jointed, 4th joint much shorter than 

 in E. kimberleyensis Mjöb., hardly longer than the 3rd, the 

 foUowing joints not so long as in E. kimberleyensis Mjöb., 

 only twice as long as broad; chitinous plates of abdomen 

 light yellowish; in other respects very similar. 



Text Fig. 25. Shape of head of soldier of Eutermes yarrahahensis Mjöb. n. sp. 

 a from the side, h from above. 



Measurements: Length of body 4,5 mm, length of head 

 1,62 mm, length of snout at base 0,63 mm, breadth of snout 

 at base 0,3 2 mm, breadth of head 0,8 9 mm, length of pro- 

 thorax 0,3 4 mm, breadth of prothorax 0,5 7 mm, breadth of 

 abdomen 0,8 9 mm. 



Worker. Smaller and head reddish brown, more darkly 

 coloured than in E. kimberleyensis Mjöb.; antennse 15-jointed. 



Measurements: Length of body 5 mm, length of head 

 1,4 1 mm, breadth of head 1,27 mm, length of prothorax 0,3 

 mm, breadth of prothorax 0,4 8 mm, breadth of abdomen 

 1,52 mm. 



Closely allied to E. kimberleyensis Mjöb. of which it poss- 

 ibly might be regarded as a variety; as the shape of the 



